# What Doctors Know vs Concise Rheumatology

The clearest difference is iOS requirement: What Doctors Know at 13.0 against Concise Rheumatology's 16.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. What Doctors Know sells 14 in-app purchases, starting at $5.99 per year and Concise Rheumatology sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | What Doctors Know | Concise Rheumatology |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/concise-rheumatology/id6757495458/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | — | Free with in-app purchases |
| Size | 12 MB | 47 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [PressPad Sp. z o.o.](https://appshunter.io/developer/449000752) | [RER MedApps](https://appshunter.io/developer/1720150558) |

## What reviewers say

### What Doctors Know

[App page](https://appshunter.io/ios/app/what-doctors-know/id880982965)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| What Doctors Know | $5.99 | per year |
| Issue #1 | $0.99 | one-time |
| Issue #2 | $0.99 | one-time |
| Issue #3 | $0.99 | one-time |
| Issue #95 | $0.99 | one-time |
| Issue #96 | $0.99 | one-time |
| Issue #97 | $0.99 | one-time |
| Issue #98 | $0.99 | one-time |
| Issue #99 | $0.99 | one-time |
| Issue #100 | $0.99 | one-time |
| Issue #91 | $0.99 | one-time |
| Issue #92 | $0.99 | one-time |
| Issue #93 | $0.99 | one-time |
| Issue #94 | $0.99 | one-time |


### Concise Rheumatology

[App page](https://appshunter.io/ios/app/concise-rheumatology/id6757495458)

This app offers a streamlined, exam-focused review of rheumatology and autoimmune diseases. It covers key clinical features, investigations, and management principles for rapid understanding and confident exam performance.

**Highlights:** Concise rheumatology topic explanations, Autoimmune and inflammatory joint disorders, Clinical presentation and investigation focus, Exam-oriented structure for rapid revision, Designed for OSCEs and university exams

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $24.99 | per year |
| Lifetime Access - 50% Off | $24.99 | one-time |
| Lifetime Access | $49.99 | one-time |


## Frequently asked questions

### Is What Doctors Know free?

What Doctors Know is free to download, with in-app purchases available.

### Is Concise Rheumatology free?

Concise Rheumatology is free to download, with in-app purchases available.

### Do What Doctors Know or Concise Rheumatology have ads?

Neither What Doctors Know nor Concise Rheumatology shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*